ID 1.3.8.13 DE crotonobetainyl-CoA reductase. CA 4-(trimethylamino)butanoyl-CoA + H(+) + oxidized [electron-transfer CA flavoprotein] = crotonobetainyl-CoA + reduced [electron-transfer CA flavoprotein]. CC -!- The enzyme has been purified from the bacterium Escherichia coli O44 CC K74, in which it forms a complex with EC 2.8.3.21. CC -!- The electron donor is believed to be an electron-transfer CC flavoprotein (ETF) encoded by the fixA and fixB genes. DR A8ALR4, CAIA_CITK8 ; A7ZHD0, CAIA_ECO24 ; B7UI85, CAIA_ECO27 ; DR B7MAG2, CAIA_ECO45 ; B7L4G2, CAIA_ECO55 ; P60586, CAIA_ECO57 ; DR B5YYD3, CAIA_ECO5E ; B7NHE3, CAIA_ECO7I ; B7MNP6, CAIA_ECO81 ; DR B7M0D6, CAIA_ECO8A ; C4ZPW5, CAIA_ECOBW ; B1XBG4, CAIA_ECODH ; DR A7ZVY9, CAIA_ECOHS ; A1A789, CAIA_ECOK1 ; Q0TLV0, CAIA_ECOL5 ; DR P60585, CAIA_ECOL6 ; B1IRD7, CAIA_ECOLC ; P60584, CAIA_ECOLI ; DR B7N7R4, CAIA_ECOLU ; B6HYZ0, CAIA_ECOSE ; B1LFX2, CAIA_ECOSM ; DR Q1RGF9, CAIA_ECOUT ; B7LWN0, CAIA_ESCF3 ; B4EY23, CAIA_PROMH ; DR Q8GB20, CAIA_PROSL ; B5F752, CAIA_SALA4 ; A9MQH5, CAIA_SALAR ; DR Q57TI8, CAIA_SALCH ; B5FHG7, CAIA_SALDC ; B5R1R2, CAIA_SALEP ; DR B5RGA6, CAIA_SALG2 ; B4TIH2, CAIA_SALHS ; B4T6J8, CAIA_SALNS ; DR Q5PIN6, CAIA_SALPA ; A9MYJ9, CAIA_SALPB ; C0Q4L5, CAIA_SALPC ; DR B5BL57, CAIA_SALPK ; B4TWR6, CAIA_SALSV ; Q8Z9L2, CAIA_SALTI ; DR Q8ZRX2, CAIA_SALTY ; Q32K58, CAIA_SHIDS ; Q0T8F5, CAIA_SHIF8 ; DR P60587, CAIA_SHIFL ; Q3Z5W9, CAIA_SHISS ; //